1 /* GAIL - The GNOME Accessibility Enabling Library
2 * Copyright 2001, 2002, 2003 Sun Microsystems Inc.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
23 #include "gtkscrolledwindowaccessible.h"
26 G_DEFINE_TYPE (GtkScrolledWindowAccessible, _gtk_scrolled_window_accessible, GTK_TYPE_CONTAINER_ACCESSIBLE)
29 visibility_changed (GObject *object,
33 if (!g_strcmp0 (pspec->name, "visible"))
37 gboolean child_added = FALSE;
41 GtkScrolledWindow *scrolled_window;
42 GtkWidget *hscrollbar, *vscrollbar;
43 GtkAccessible *accessible = GTK_ACCESSIBLE (user_data);
45 widget = gtk_accessible_get_widget (user_data);
49 scrolled_window = GTK_SCROLLED_WINDOW (widget);
50 children = gtk_container_get_children (GTK_CONTAINER (widget));
51 index = n_children = g_list_length (children);
52 g_list_free (children);
54 hscrollbar = gtk_scrolled_window_get_hscrollbar (scrolled_window);
55 vscrollbar = gtk_scrolled_window_get_vscrollbar (scrolled_window);
57 if ((gpointer) object == (gpointer) (hscrollbar))
59 if (gtk_scrolled_window_get_hscrollbar (scrolled_window))
62 child = gtk_widget_get_accessible (hscrollbar);
64 else if ((gpointer) object == (gpointer) (vscrollbar))
66 if (gtk_scrolled_window_get_vscrollbar (scrolled_window))
69 child = gtk_widget_get_accessible (vscrollbar);
70 if (gtk_scrolled_window_get_hscrollbar (scrolled_window))
71 index = n_children + 1;
75 g_assert_not_reached ();
80 g_signal_emit_by_name (accessible, "children-changed::add", index, child, NULL);
82 g_signal_emit_by_name (accessible, "children-changed::remove", index, child, NULL);
88 gtk_scrolled_window_accessible_initialize (AtkObject *obj,
91 GtkScrolledWindow *window;
93 ATK_OBJECT_CLASS (_gtk_scrolled_window_accessible_parent_class)->initialize (obj, data);
95 window = GTK_SCROLLED_WINDOW (data);
97 g_signal_connect_data (gtk_scrolled_window_get_hscrollbar (window), "notify::visible",
98 G_CALLBACK (visibility_changed),
100 g_signal_connect_data (gtk_scrolled_window_get_vscrollbar (window), "notify::visible",
101 G_CALLBACK (visibility_changed),
104 obj->role = ATK_ROLE_SCROLL_PANE;
108 gtk_scrolled_window_accessible_get_n_children (AtkObject *object)
111 GtkScrolledWindow *scrolled_window;
115 widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (object));
119 scrolled_window = GTK_SCROLLED_WINDOW (widget);
121 children = gtk_container_get_children (GTK_CONTAINER (widget));
122 n_children = g_list_length (children);
123 g_list_free (children);
125 if (gtk_scrolled_window_get_hscrollbar (scrolled_window))
127 if (gtk_scrolled_window_get_vscrollbar (scrolled_window))
134 gtk_scrolled_window_accessible_ref_child (AtkObject *obj,
138 GtkScrolledWindow *scrolled_window;
139 GtkWidget *hscrollbar, *vscrollbar;
140 GList *children, *tmp_list;
142 AtkObject *accessible = NULL;
144 g_return_val_if_fail (child >= 0, NULL);
146 widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
150 scrolled_window = GTK_SCROLLED_WINDOW (widget);
151 hscrollbar = gtk_scrolled_window_get_hscrollbar (scrolled_window);
152 vscrollbar = gtk_scrolled_window_get_vscrollbar (scrolled_window);
154 children = gtk_container_get_children (GTK_CONTAINER (widget));
155 n_children = g_list_length (children);
157 if (child == n_children)
159 if (gtk_scrolled_window_get_hscrollbar (scrolled_window))
160 accessible = gtk_widget_get_accessible (hscrollbar);
161 else if (gtk_scrolled_window_get_vscrollbar (scrolled_window))
162 accessible = gtk_widget_get_accessible (vscrollbar);
164 else if (child == n_children + 1 &&
165 gtk_scrolled_window_get_hscrollbar (scrolled_window) &&
166 gtk_scrolled_window_get_vscrollbar (scrolled_window))
167 accessible = gtk_widget_get_accessible (vscrollbar);
168 else if (child < n_children)
170 tmp_list = g_list_nth (children, child);
172 accessible = gtk_widget_get_accessible (GTK_WIDGET (tmp_list->data));
175 g_list_free (children);
177 g_object_ref (accessible);
183 _gtk_scrolled_window_accessible_class_init (GtkScrolledWindowAccessibleClass *klass)
185 AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
187 class->get_n_children = gtk_scrolled_window_accessible_get_n_children;
188 class->ref_child = gtk_scrolled_window_accessible_ref_child;
189 class->initialize = gtk_scrolled_window_accessible_initialize;
193 _gtk_scrolled_window_accessible_init (GtkScrolledWindowAccessible *window)